Environmental Management Systems are effective tools to ensure the minimization of the impact of port activities. In the expectation of designing an Environmental Management System for Quequén Port (EMSQP), the present paper has three main aims: to analyze the environmental situation of the concessioned terminals at the Port; to identify the most relevant environmental problems; and to develop an expeditious diagnosis of favorable and unfavorable aspects to address the identified problems. The first objective demanded information requests to the seven terminals, the analysis of the documents submitted by the companies, and the creation of semi-structured interviews with qualified informants. The identification of environmental problems (second aim) required the analysis of background studies and of systematic field work. Finally, a SWOT (Strengths, Weaknesses, Opportunities and Threats) matrix was constructed to achieve the last objective. The analysis of the information provided by the companies reveals that there is a high degree of alignment with current environmental regulations. Several environmental problems were detected in the Port, among which are: air pollution by particulate matter generated in the operation of loading and unloading ships; water and soil pollution by spills, solid waste disposal, and dredging; and breach of international regulatory standards of water quality for human consumption. The SWOT analysis provided comprehensive understanding of the environmental situation of the Port, allowing the generation of guidelines for intervention to prevent, mitigate or correct the problems identified. In view of the state of the overall environmental situation of the terminals, the prospects for implementation of the System would be favorable to the Port. It is important to highlight that, in order to carry it out, it is required the commitment and active participation of all involved parties.